Along with the Biblical Feast days of Leviticus 23, we also celebrate the sighting of the first sliver of the new moon each month.

• New Moons
  1st Aviv/Nisan
  2nd Iyar
  3rd Sivan
  4th Tamuz
  5th Av
  6th Elul
  7th Tishrei
  8th Cheshvan
  9th Kislev
  10th Tevet
  11th Shevat
  12th Adar I
  13th Adar II